Cleaning brush



FIG. 1 is a front elevation view of the cleaning brush.

FIG. 2 is a rear elevation view of the cleaning brush.

FIG. 3 is a top plan view of the cleaning brush.

FIG. 4 is a bottom plan view of the cleaning brush.

FIG. 5 is a right side elevation view of the cleaning brush; and,

FIG. 6 is a left side elevation view of the cleaning brush.

CLAIM I claim the ornamental design for a cleaning brush, as shown anddescribed.